@BrianRoemmele@grok What if there is a cardboard insert in the shirt, and the six holes are only in the front of the shirt?
What if the cardboard insert blocking the view of the back of the shirt is hiding an unspecified number of holes, from zero to a large number of small holes?
@civic_cat An aperture in front of an extended or collimated source followed by a lens. The lens focuses the aperture on the board. Same optics as a slide projector with an aperture as the slide.
Hot filament lights are gonna need active cooling. Consider LEDs.
Grab your cup of coffee (or your orange juice, or your presidential can of Diet Coke) and join us for the morning coffee mantra!
https://t.co/73CfR6MCDX